{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T15:17:40Z","timestamp":1790176660542,"version":"4.1.0"},"reference-count":47,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,6,26]],"date-time":"2026-06-26T00:00:00Z","timestamp":1782432000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,6,26]],"date-time":"2026-06-26T00:00:00Z","timestamp":1782432000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["advanced.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Advanced Science"],"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Limited by the intrinsic magnetic loss ability, the electromagnetic wave absorption (EMA) materials have encountered a bottleneck to achieve effective EMA with super\u2010low density. In this work, we propose a novel strategy to boost magnetic loss capacity by controlling surface atom spin. Using hollow Fe\n                    <jats:sub>3<\/jats:sub>\n                    O\n                    <jats:sub>4<\/jats:sub>\n                    nanoparticles as a model, with their hollow rates controlled to 0, 17.1%, 32.2%, 46.6% and 54.1%, we reveal that the magnetic loss capacity is mainly dependent on the surface atom moment rather than the body moment. Attributed to the coexistence of inside and outside surface atoms moment, the 54.1% hollow Fe\n                    <jats:sub>3<\/jats:sub>\n                    O\n                    <jats:sub>4<\/jats:sub>\n                    absorber represents about 20% enhancement in the imaginary part (\n                    <jats:italic>\u00b5<\/jats:italic>\n                    '') than solid particles over 2\u201318\u00a0GHz. This improvement further makes the effective absorption bandwidth (\u2264\u20105\u00a0dB) at 2.0\u00a0mm broaden to 11.91\u00a0GHz from 5.68\u00a0GHz in solid Fe\n                    <jats:sub>3<\/jats:sub>\n                    O\n                    <jats:sub>4<\/jats:sub>\n                    nanoparticles and makes the absorption ability shift to low frequency. More importantly, the density of 54.1% hollow Fe\n                    <jats:sub>3<\/jats:sub>\n                    O\n                    <jats:sub>4<\/jats:sub>\n                    absorber is only 48.9% of solid sample, which is very promising to meet the requirements for miniaturization and lightweighting. These findings provide important theoretical and practical guidelines for designing ultralight magnetic absorbers.\n                  <\/jats:p>","DOI":"10.1002\/advs.76339","type":"journal-article","created":{"date-parts":[[2026,6,26]],"date-time":"2026-06-26T11:42:06Z","timestamp":1782474126000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Surface\u2010Spin\u2010Induced Magnetic Loss Enhancement in Ultralight Electromagnetic Absorbers"],"prefix":"10.1002","author":[{"given":"Ruimin","family":"Ren","sequence":"first","affiliation":[{"name":"Department of Chemistry School of Advanced Materials and Future Technology Beijing Technology and Business University  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ke","family":"Yang","sequence":"additional","affiliation":[{"name":"Department of Chemistry School of Advanced Materials and Future Technology Beijing Technology and Business University  Beijing China"},{"name":"Department of Orthodontics, School and Hospital of Stomatology China Medical University  Shenyang China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7065-6123","authenticated-orcid":false,"given":"Chichong","family":"Lu","sequence":"additional","affiliation":[{"name":"Department of Chemistry School of Advanced Materials and Future Technology Beijing Technology and Business University  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7794-4606","authenticated-orcid":false,"given":"Song","family":"Ma","sequence":"additional","affiliation":[{"name":"Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences  Shenyang China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bowen","family":"Zheng","sequence":"additional","affiliation":[{"name":"Department of Orthodontics, School and Hospital of Stomatology China Medical University  Shenyang China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7980-2991","authenticated-orcid":false,"given":"Zhenhui","family":"Ma","sequence":"additional","affiliation":[{"name":"Department of Chemistry School of Advanced Materials and Future Technology Beijing Technology and Business University  Beijing 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